{
  "manageEntity": {
    "action": "Update",
    "entityId": "551130365",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x235b7dbc7a5a0cfb5fbc541350f58bb5434dd076e7d135f8e4b8cf23e583eb93",
    "signature": "0x212fe32bd2235ef04787c583732c2d1846872d2dcbd0d9be1a62c995a933ea360936f7daccacfadad9158ea4b8ccc8c252c2da3b8f7d2b3064b7477a6cce5c011c",
    "signer": "0xeE668EE089Ee648DE5Ffa964C4832e855f35F0C4",
    "userId": "551130365"
  }
}